package com.kaifamiao.base.Demo210914;

/**
 * @author lucien-ma
 * @date 2021/9/14
 * @apiNote
 */
public class Demo01 {
    public static void main(String[] args) {
        Integer a = 2;
        Demo01 demo01 = new Demo01();
        demo01.add(a);
        System.out.println(a);
    }

    public void add(Integer a) {
        System.out.println("add(Integer a)");
        a = a + 1;
    }
}
